Labor Day Weekend. 1 Reel Film Festival at SIFF Film Center in Seattle. During Bumbershoot, audiences can enjoy a selection of many international cinema shorts. Tickets: Single Film Admission: Adult $15, Seniors and Youth $14, SIFF Members $10. Passes: General $150, Members $100. Discounts: SIFF membership includes year-round discount movie tickets, FREE popcorn, and other benefits. SIFF volunteers can earn free movie ticket vouchers. Some programs and films prohibit the use of vouchers.